A trial of FGM bearings with solid lubricant

T. Hashimoto, H. Kohri, Atsushi Yumoto, I. Shiota

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is difficult to use an ordinary plain bearing under a high load or at a high friction speed because lubricant oil is pushed out from the friction surface or deterioration of the lubricant oil is caused by heat of friction. A solid lubricant, MoS2, is promising in such condition. When the lubricant is dispersed in a matrix, the solid lubricant is always supplied from the matrix. Such a composite bearing needs a back metal to maintain its shape. The heat of friction may cause a crack between the bearing and the back metal due to thermal stress. A bearing with low coefficient of friction is necessary to decrease the heat of friction, and an FGM structure is also promising to decrease the stress. The aim of this experiment is to fabricate and to examine friction properties of the composites. Cu was plated on the lubricant particles by electroless deposition. The lubricant volume fraction (hereafter V f) was up to Vf 30 %. The Cu plated lubricant particles were hot-pressed to form a composite at 873 K under 30 MPa in a vacuum. Friction properties of the composites were determined by using a ball-on-disk type testing machine. The test was performed in the air without oil at room temperature. The solid lubricant in the composites was effective to decrease the coefficients of friction under a high load when the Vf was higher than 20 %.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages465-470
Number of pages6
Volume631-632
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs - Sendai
Duration: 2008 Sep 222008 Sep 25

Publication series

NameMaterials Science Forum
Volume631-632
ISSN (Print)02555476

Other

Other10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs
CitySendai
Period08/9/2208/9/25

Fingerprint

Bearings (structural)
functionally gradient materials
solid lubricants
Solid lubricants
Functionally graded materials
lubricants
friction
Friction
Lubricants
composite materials
oils
Composite materials
Oils
heat
coefficient of friction
electroless deposition
Metals
matrices
thermal stresses
test equipment

Keywords

  • Composites
  • Electroless deposition
  • Friction
  • MoS
  • Wear

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Hashimoto, T., Kohri, H., Yumoto, A., & Shiota, I. (2010). A trial of FGM bearings with solid lubricant. In Materials Science Forum (Vol. 631-632, pp. 465-470). (Materials Science Forum; Vol. 631-632). https://doi.org/10.4028/www.scientific.net/MSF.631-632.465

A trial of FGM bearings with solid lubricant. / Hashimoto, T.; Kohri, H.; Yumoto, Atsushi; Shiota, I.

Materials Science Forum. Vol. 631-632 2010. p. 465-470 (Materials Science Forum; Vol. 631-632).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hashimoto, T, Kohri, H, Yumoto, A & Shiota, I 2010, A trial of FGM bearings with solid lubricant. in Materials Science Forum. vol. 631-632, Materials Science Forum, vol. 631-632, pp. 465-470, 10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs, Sendai, 08/9/22. https://doi.org/10.4028/www.scientific.net/MSF.631-632.465
Hashimoto T, Kohri H, Yumoto A, Shiota I. A trial of FGM bearings with solid lubricant. In Materials Science Forum. Vol. 631-632. 2010. p. 465-470. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.631-632.465
Hashimoto, T. ; Kohri, H. ; Yumoto, Atsushi ; Shiota, I. / A trial of FGM bearings with solid lubricant. Materials Science Forum. Vol. 631-632 2010. pp. 465-470 (Materials Science Forum).
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